124408506642 has 64 divisors (see below), whose sum is σ = 289913105664. Its totient is φ = 34852296960.

The previous prime is 124408506517. The next prime is 124408506647. The reversal of 124408506642 is 246605804421.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 124408506594 and 124408506603.

It is not an unprimeable number, because it can be changed into a prime (124408506647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3626892 + ... + 3661032.

It is an arithmetic number, because the mean of its divisors is an integer number (4529892276).

Almost surely, 2^124408506642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124408506642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144956552832).

124408506642 is an abundant number, since it is smaller than the sum of its proper divisors (165504599022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124408506642 is a wasteful number, since it uses less digits than its factorization.

124408506642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35843.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 124408506642 in words is "one hundred twenty-four billion, four hundred eight million, five hundred six thousand, six hundred forty-two".